All tools — Page 4
983 useful tools. Browse a category or search the full toolkit.
Tip and Bill Split Calculator
Calculate a gratuity and split the combined bill evenly across a whole-number party size.
CalculatorsSalary to Hourly Calculator
Translate gross annual salary into hourly, monthly, and paid-working-week equivalents.
CalculatorsEffective Annual Rate Calculator
Convert a nominal annual rate into an effective annual rate for a selected compounding frequency.
Date & timeDate Add and Subtract Calculator
Move a calendar date forward or backward by days, weeks, months, or years using UTC date arithmetic.
Date & timeBusiness Days Calculator
Count Monday–Friday dates between two dates, excluding an optional list of your own holidays.
Date & timeISO Week Calculator
Find ISO week number, week-based year, weekday, and Monday–Sunday dates for a calendar date.
TextText List Comparator
Find common or exclusive entries in two text lists with an explicit comparison policy.
TextText Truncator
Shorten text to a grapheme budget, including an optional suffix inside that budget.
TextLine Prefix and Suffix
Add literal text before and after each selected line without evaluating templates.
TextTab and Space Converter
Expand tab stops or compress leading spaces with an explicit tab width.
TextASCII Table Generator
Convert CSV or TSV records to a bounded monospaced text table with aligned columns.
TextString Similarity Calculator
Calculate grapheme Levenshtein edit distance and a clearly defined normalized similarity.
TextWhitespace Auditor
Report line-ending styles, indentation, trailing whitespace, BOM, and final-newline state without editing input.
TextLine Range Extractor
Select or omit explicit 1-based line ranges, preserving source order.
DeveloperBase-N Encoding Workbench
Encode UTF-8 as Base16, Base32, or Base64url, or decode canonical data strictly.
DeveloperQuoted-Printable Converter
Encode UTF-8 text as MIME quoted-printable or decode its byte escapes and soft breaks.
DeveloperIDN and Punycode Converter
Inspect validated internationalized domains in ASCII and Unicode using nontransitional UTS46 processing.
FilesText File Encoding Converter
Decode a local text file with an explicit charset and export UTF-8 with chosen BOM and newline handling.
TextHTML to Plain Text
Extract plain text from pasted HTML without mounting markup or requesting linked resources.
DeveloperMarkdown to Safe HTML
Convert Markdown to an HTML fragment with raw HTML disabled and no mounted preview.
DeveloperHTML to Markdown
Convert simple HTML headings, paragraphs, lists, emphasis, links and code into editable Markdown.
DeveloperMarkdown Table Formatter
Validate and align one simple pipe table while retaining escaped pipes and source cell markup.
SEOMarkdown Link Auditor
List Markdown link and image destinations, reference definitions, and possible unresolved bracket references locally.
DeveloperMarkdown Front Matter Editor
Extract, replace, or remove a leading safe YAML metadata map while preserving the Markdown body.
SEOXML Sitemap Generator
Build a sitemap from real HTTP(S) URLs and optional truthful last-modified dates.
SEOXML Sitemap Auditor
Inspect a pasted sitemap or sitemap index for namespace, URL, date and duplicate-entry issues offline.
SEORobots.txt Rule Tester
Explain crawler-group selection and allow/disallow path matching for a pasted robots file.
SEOMetadata and Open Graph Builder
Generate escaped HTML metadata from a title, description, chosen canonical and optional social image.
SEOPasted Metadata Auditor
List title, description, canonical, robots and Open Graph values in supplied HTML with limited conflict warnings.
SEOHreflang Generator
Create self-inclusive alternate-language tag sets from an explicit JSON table of locales and URLs.
SEOBreadcrumb JSON-LD Generator
Serialize ordered names and HTTP(S) URLs as script-safe BreadcrumbList structured data.
SEOJSON-LD Graph Inspector
Inspect object-node IDs, types, contexts and local reference edges without loading remote contexts.
SEOTracking URL Cleaner
Preview and remove explicitly selected query-parameter names or prefixes from an HTTP(S) URL.
SEORSS and Atom Feed Inspector
Read supplied RSS2 or Atom XML as a plain JSON entry inventory without fetching media or links.
AccessibilityHeading Outline Auditor
List h1–h6 headings and flag empty text or skipped levels in supplied HTML.
AccessibilityImage Alternative Text Auditor
Distinguish missing, empty and non-empty alt attributes in pasted image markup.
AccessibilityForm Label Auditor
Inspect explicit and wrapping labels, duplicate IDs, and declared ARIA label references in static forms.
AccessibilityLanguage Tag Syntax Checker
Check browser-supported language-tag syntax and canonical spelling while identifying private-use tags separately.
AccessibilityLocale Number Formatter
Format a finite decimal in an explicit locale, showing the resolved locale and formatted parts.
AccessibilityLocale Date and Time Formatter
Format a timezone-explicit ISO instant in a chosen locale and IANA time zone.
AccessibilitySemantic HTML Table Generator
Convert a simple CSV table into escaped HTML with a caption and explicit header scope.
AccessibilityContrast Palette Generator
Generate bounded opaque sRGB candidates that meet a declared WCAG contrast ratio against one background.
AccessibilityARIA Markup Auditor
Inspect a limited set of declared roles, common ARIA value tokens and local ID references in pasted HTML.
FilesFile Hash Verifier
Hash exact local file bytes with SHA-2 and optionally compare a supplied expected digest.
FilesFile Type Inspector
Inspect a bounded file header for a small signature allowlist without executing or decompressing it.
FilesBinary Hex Viewer
Display a bounded byte slice with hexadecimal offsets, hex values and an escaped ASCII view.
FilesBinary File Split and Join
Split local bytes into stored ZIP parts with a hash manifest, or concatenate an explicit ordered file selection.
FilesGZIP File Converter
Compress a local file to GZIP or decompress a GZIP stream with a strict streaming output cap.